Sealy - Memory Foam Bed in a Box - 8 Inch, Medium Feel, Twin XL Size, CopperChill Technology, CertiPur-US Certified

This mattress is very comfortable. However, we purchased two twin size mattresses. On both of them one end is flat and did not expand to the 8” depth. This is very disappointing. Since it would be impossible to roll the mattresses back up and return we elected to keep them and accept a discount. I really expected better from Sealy. Amazon was great to help us. All Sealy would do was refer us to Amazon. Amazon did make us happy. Disappointed In Sealy and their defective product.

I did not review this right away as I wanted to wait until I had actually slept on it for a month or so. Now that it has been about a month and a half I will say that this is one of the best investments for sleep comfort that I have ever made.I have had lower back issues along with left shoulder problem since my early 20s (I am now just south of 70). I have read about mattresses with memory foam tops for several years now and thought someday. So back in February I saw Sealy was having sales on their mattresses and found this particular one on Amazon. I will say now that I have slept on it for almost two months that I would say it is worth the non-sale price for the better sleep it has provided me in this past 6-7 weeks.The mattress was packed into a box that when you look at it you wonder how in the world can it contain something as large as an 8 inch mattress but if you follow the easy directions and let it sit for at least 24 hours, you will see that it does. It does have some weight to it so be sure to take the plastic off when you have it laying on the bed frame where you are placing it.In the past 6-7 weeks I have experienced some of the best sleeping hours experienced in many years (really cannot remember how long it has been). I fall asleep faster, do not awaken that often and my lower back pain is probably about 2/3 improved over what it was previously. My left shoulder issue is also improved. While, at my age, I know these problems are never going to be fully resolved, this amount of improvement is extremely welcome.The only problem that I can note about this mattress is that I really do not want to get out of bed in the morning because it is so comfortable.

Update: October 2019. It’s been 8 mos since purchasing this mattress. Just wanted to update on how it is holding up. The mattress remains as firm as it was immediately after purchase. There are no dips or worn spots in the areas my husband and I sleep in. We rotate the mattress every other time we change the sheets. So, maybe twice a month. My husband is 6’ and about 220lbs. I’m 5’6” and about 150lbs. He is a side and back sleeper with arthritis from several old back, shoulder, and hip injuries from his military career. I am a stomach and side sleeper with arthritis in my back and hips from years of riding and showing horses. The support remains amazing. The overheating problem was resolved when we switched back to our goosedown duvet instead of the synthetic comforter we were using. I guess it just breathes better. Overall, we are so pleased with this mattress that we’re starting to convert the other 3 children’s beds to these mattresses. We’ve already switched the infant to Sealy’s foam crib mattress. No crinkling to wake her up. She sleeps like a rock. If or when this mattress wears out, we’re definitely buying another one to replace it. This has to be the best mattress we’ve ever bought. Highly recommend.The mattress arrived in perfect condition. It expanded quickly. Definitely a Medium Firm- Firm support level. I’m 38 weeks pregnant and it is very comfortable for my back, hips, and supports my stomach well while laying on my sides. This mattrress sleeps so unbelievably hot though. I thought it might be a pregnancy thing but my husband confirms. Our teenage son also fell asleep in our bed reading the other night while I was watching tv and woke up in a full sweat too. I’m thinking of adding a gel mattress topper to help cool it down and get us through the summer. We’re in the southeast on the coast of SC and I’m not going to make it through summer with this mattress like it is. 5 stars for awesome support comfort and quality. But I had to take one away for the misery of waking up dripping in sweat every night.

I chose this mattress because it has no fiberglass like MANY mattresses do and it is American made.

No more tossing and turning to get comfortable. Good nights sleep from first night. Very happy

Bed seems to be really comfortable but it only expanding to 70" will not work for intended use for several guests that are right at 6 feet tall. The ends still look so tight and haven't moved at all in 3 days! Now I have to figure out how to send back, I'm sure that is going to be real fun....ugh! Not to mention find another 8" of a brand I know to fit in a trundle! Thought I'd have a winner with Sealy. Don't go with this mattress if you need every inch of the length.

Replaced a $2,000 FIRM mattress that was killing my back (the reason we purchased it to begin with). Took a chance on this mattress and struck GOLD! It is very comfortable and supports in all the right spots. Would purchase again and again...

Got this mattress in twin for my 6 yr old. Definitely a better mattress for his back than his old spring mattress. He sleeps better and and straighter and doesnt seem as uncomfortable anymore. He actually wants to go to bed now and doesnt ask to sleep on couch anymore. Wasnt worried about a box spring cause his bedframe is the bunk bed type but he sleeps on lower bed which it fit perfectly for. We waited a few hours after taking it out of the package, just to make sure the foam had flurred up all the way. Was pretty neat watching it foam up into action after unrolling it from the wrap that was around it. U can notice after a few hours the cover over it fits more the more it foams out. My husband and i sleep on an expensive Sealy firm, foam and gel mattress ordered from Sears - this mattress almost feels just like it. After purchasing ours he wanted one like it as to why we tried this. Glad we did and got it on sale around Christmas. Not sure why some reviews said this mattress was not firm. I think this mattress is way firmer than the memory foam mattress i seen at walmart. Glad we didnt buy that one.